How to graph f(x)=−2∣x+4∣

Find the solution of system of equation y= x-4 y=4x+2

For which pair of functions is (gof)(a)=|a|-2?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.